AirHint found the following cheapest one-way flights from Seoul (ICN) to Seattle (SEA) in October 2026 (see full year).
One-Way flights
| 04 Oct | Cebu Pacific | ||
| 14 Oct | Philippine Airlines | ||
| 14 Oct | Delta | direct | |
| 26 Oct | Asiana Airlines | direct | |
| 04 Oct | Asiana Airlines | direct |
Also check the deals for return flights from Seoul to Seattle in October.
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